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Unit 3, Palace Court, 250 Finchley Road, London NW3 6DN
🏠 TERRACE EXTENSION SPECIALISTS 🏠

Terrace House Extensions & Side Returns Across Hampstead, Camden & North London

Transform your Victorian or Edwardian terrace with expertly designed side return, rear and wraparound extensions that maximise space, flood your home with light and create stunning open-plan living for modern family life.

500+ Terrace Extensions
Party Wall Experts
Conservation Approved

Terrace Extension Specialists Across North London

With over 500 terrace extensions completed, we understand the unique challenges and opportunities of Victorian and Edwardian terraced properties.

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Side Return Specialists

Expert at maximising narrow side passages to create spacious kitchen-diners with structural glazing, roof lanterns and seamless indoor-outdoor connections to your garden.

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Wraparound Expertise

L-shaped and full-width rear extensions combining side return and rear spaces for dramatic open-plan living with islands, dining areas and garden views.

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Party Wall Management

Complete Party Wall service including surveyor appointments, neighbour liaison and award documentation. We've never had a Party Wall dispute delay a project.

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Conservation Area Experts

Successful planning applications across Hampstead, Camden and Islington conservation areas with designs that satisfy heritage officers while delivering modern living.

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Light-Filled Design

Roof lanterns, Crittall-style glazing, bi-fold doors and clerestory windows engineered to flood deep terrace floorplans with natural daylight throughout the year.

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10-Year Structural Warranty

All extensions include building control sign-off, structural engineer certificates and a comprehensive 10-year warranty backed by insurance.

Recent Terrace Transformations

A selection of side return, rear and wraparound extensions delivered for terrace homeowners across North London.

Side Return Kitchen Extension
Tufnell Park, N7
Full-Width Rear Extension
Kentish Town, NW5
Victorian Wraparound
Crouch End, N8
Crittall & Roof Lantern
Canonbury, N1
Edwardian Open-Plan
Muswell Hill, N10
Mid-Terrace Extension
Highbury, N5

The Terrace Extension Journey

A proven approach delivering beautiful extensions with minimal disruption to your home and neighbours.

1

Site Survey & Feasibility

We measure your property, assess structural requirements, review permitted development rights and discuss design options, Party Wall implications and budget expectations.

2

Design & Planning

Architectural drawings, structural calculations and planning applications where required. We handle Party Wall notices and surveyor appointments in parallel.

3

Construction Phase

Foundations, steelwork and building works with daily site management, dust control and neighbour communication. We protect your home throughout.

4

Fit-Out & Completion

Kitchen installation, electrics, plumbing, flooring and decoration followed by building control sign-off, snagging and warranty handover.

Trusted by Terrace Homeowners

Read what homeowners say about their terrace extension experience.

★★★★★

"Our side return extension transformed a dark galley kitchen into a stunning open-plan space with roof lantern and bi-folds. The team managed Party Wall negotiations brilliantly."

Emma & Tom Richardson
Tufnell Park, N7
★★★★★

"A wraparound extension on our Victorian terrace – they dealt with planning, Party Walls on both sides and delivered a beautiful kitchen-diner opening onto the garden."

Sarah Patterson
Crouch End, N8
★★★★★

"Professional from start to finish. The Crittall doors and roof lantern bring so much light into our home. Worth every penny and completed on schedule."

Michael & Claire Wong
Canonbury, N1

Terrace Extension Specialists Across North London

Serving Victorian and Edwardian terrace neighbourhoods from Hampstead to Islington, Camden to Muswell Hill.

NW5

Kentish Town & Gospel Oak

Kentish Town, Gospel Oak, Dartmouth Park, Parliament Hill, Highgate Road.

N7

Tufnell Park & Holloway

Tufnell Park, Holloway, Nag's Head, Caledonian Road, Junction Road.

N1

Islington & Canonbury

Canonbury, Barnsbury, De Beauvoir, Angel, Upper Street.

N8

Crouch End & Hornsey

Crouch End, Hornsey, Stroud Green, Harringay, Hornsey Rise.

N5

Highbury & Arsenal

Highbury Fields, Highbury New Park, Arsenal, Drayton Park.

N4

Finsbury Park & Manor House

Finsbury Park, Manor House, Stroud Green, Harringay Ladder.

NW3

Hampstead & Belsize Park

Hampstead, Belsize Park, South End Green, Gospel Oak, Swiss Cottage.

N10

Muswell Hill & Highgate

Muswell Hill, Highgate, Alexandra Park, Fortis Green, Cranley Gardens.

Terrace Extension FAQs

Expert answers to common questions about extending terrace properties.

What is a side return extension?
A side return extension fills in the narrow alley alongside your kitchen, typically adding 1-2 metres width. Combined with rear extensions, this creates spacious open-plan kitchen-diners perfect for Victorian and Edwardian terraces.
How much does a terrace house extension cost?
Terrace extensions typically range from £60,000 to £150,000 depending on size and specification. Side return only starts around £45,000, while full wraparound extensions with high-end finishes can exceed £180,000.
Do I need planning permission for a terrace extension?
Many rear and side return extensions qualify under Permitted Development rights. However, conservation areas, listed buildings and Article 4 directions may require full planning permission. We handle all applications and pre-application advice.
How long does a terrace house extension take?
Most terrace extensions take 10-16 weeks on site. Side return only projects complete in 8-10 weeks, while full rear extensions with structural works typically require 12-16 weeks.
Can you extend a mid-terrace property?
Yes, mid-terrace houses can extend to the rear and often utilise side returns. Party Wall agreements are required with both neighbours, which we manage as part of our service.
What about Party Wall agreements?
We handle all Party Wall matters including serving notices, appointing surveyors and managing neighbour communications. Most agreements are resolved within 4-6 weeks before construction begins.

Request Your Free Site Survey

Share details about your terrace and our team will arrange a survey to discuss your extension options.

Free Site Survey
Party Wall Guidance
10-Year Warranty
Chat with us! Call Now: 07459 345456
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